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A vibrating shuttle is a bobbin driver design used in home lockstitch sewing machines during the second half of the 19th century and the first half of the 20th century. It supplanted earlier transverse shuttle designs, but was itself supplanted by rotating shuttle designs.
Bobbin lace ground is the regular small mesh filling the open spaces of continuous bobbin lace.Other names for bobbin lace ground are net or réseau (French for network). The precise course of the threads and the resultant shape of the ground are an important diagnostic feature in lace identification, as different lace styles use different groun
The hook mechanism carries the upper thread entirely around the bobbin case so that it has made one wrap of the bobbin thread. Then the take-up arm pulls the excess upper thread (from the bobbin area) back to the top, forming the lockstitch. Then the feed dogs pull the material along one stitch length, and the cycle repeats.
It could replicate the grille or half-stitch which defeated the Leavers machine. It could be hand lined using a Cornely machine. Lace was dependent on fashion. In 1867 women stopped wearing shawls, and the Franco-Prussian War cut off the trade with France there was market for this lace. The redundant Pushers were scrapped.
The bobbin winder is mounted high on the pedestal, where a small rubber tire occupying its pulley makes contact with the motor belt. The new mounting position solves the bobbin winder belt problem discussed later. Dedicated motor mounting lugs, cast into the rear of the pillar, standardize the position of the motor bracket.
The recent quarter was not as bad as analysts had feared.
Tension of the bobbin thread is maintained with a bobbin case, a metal enclosure with a leaf spring which keeps the thread taut. The bobbin case has to be free-floating (not attached to an axle) in order to allow the top thread to pass around the bobbin completely and hook the bobbin thread.
This 36-inch trampoline uses 30 tension bands to provide a safe, supportive and whisper-quiet foundation for your workout. Burn calories, boost your heart health and increase muscle tone — this ...